Which description best reflects military force as hard power? the use of military force to resolve foreign policy situations instead of diplomacy
the willingness to use sparse military forces to support diplomatic efforts
the use of a strong military only for defense against a direct attack
the willingness to use a large standing, modern military as a show of strength

answer; i believe that they became wealthy from gold and salt in their area, and became powerful by controlling trade in west

i believe the answer is:   psychological  experiment

in this experiment, wilhelm wundt became the first person that implement scientific method in analyzing the pyschological phenomenon.

due to this result, wilhelm wundt also able to make psychology to be acknowledged as a separate scientific field from biology.

answer; curiosity;